Geoege tittley



(No MJdel.)

' G. TITTLBY.

l* LATCH. No. 306.554. Patented 0013.14, 1884.

4rrn STATES GEORGE TIITLEY, OF CHICAGO, ILLINOIS, ASSIGNOR TO GARYOALKINS, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 306,554, dated October14, 1884.

Application filed February 1l, 1884. (NO mmlel.)

T all whom it may concern.-

Beit known that I, GEORGE TITTLEY, reA siding at Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefulImprovements in Latches, of which the following, in connection with theaccompanying drawings, is a specication.

In the drawings, Figure l is a cross-section of a latch embodying myimprovements. Fig.

1o 2 is a section in the plane of the line x w of Fig. I, viewed in thedirection indicated by 4the arrow there shown. Fig. 3 is aside view ofthe catch or latch shown detached orin detail; and Fig. 4 is a sectionin the plane of the I5 line y g/ of Fig. 3, viewed in the directionindicated by the arrow there shown.

Like letters of reference indicate like parts.

This invention relates to that class of doorlatches in which the latchis drawn by means 2o of levers having` their outer ends arranged inproximity to the shanks of stationary knobs; and the object of myinvention is to provide improved means for preventing the inner ends ofthe levers from comingin contact with each other.

A A are the levers referred to. B B are the knob-Shanks, and O O are theknobs. D is the latch or catch.

Heretofore the levers A A have been ful- 3o crumed, so that their outerends could be pressed toward the shanks with facility, while the knobsrespectively were taken hold of for the purpose of opening the door, andthe inner ends of the said levers entered a slot in 3 5 the latch orcatch D. Vhen so arranged, the inner ends of the said levers, when thelevers were allowed to move too freely on their fulerums, were liable tocome in contact with each other, and thus impede the proper action of 4othe catch, unless means were provided for separating the inner ends ofthe levers.

To prevent the inner ends of the levers A A from the contact referredto, I make two slots, a and a', in the catch D. In other words, in theslot for receiving the inner ends of the levers I make a centrallongitudinal web or light bar, a, so that each lever will thereby beseparated from the other, but yet be allowed to move freely inperforming its functions. In other respects the latch may be constructedas latches of this vclass have heretofore been made, or in any suitableor well-known Way, permitting the latch or catch D to be drawn by meansof levers A A.

It is to be understood that the latch or catch D is thrust out by meansof a spring acting on it; but I have not here attempted to show anddescribe all of the parts of the latch in detail, as such locks havelong been well known, and as my present invention relates only to theherein-described means for separating the inner ends ofthe levers. Inthe example shown the latch is represented as set in a niortise in adoor, E, and E F are rose-plates, slotted to permit the vibrations ofthe levers A A.

Having thus described my invention, what I claimas new, and desire tosecure by Letters Patent, is

The combination of t-he latch or catch D, having therein the slots a anda', the levers A A, entering the said slots respectively, and thestationary knob-Shanks, substantially as and for the purposes specied.

In testimony that I claim the foregoing as my own I hereto affix mysignaturein presence of 75 two witnesses.

hi GEORGE s TITTLEY.

